Finding the Fourth Proportional to 1,113,455,188.94, 1,670,872,484.15 and 647,335,989.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,113,455,188.94 : 1,670,872,484.15 = 647,335,989.72 : x
2. Step 2: Convert to fraction form
   1,113,455,188.94/1,670,872,484.15 = 647,335,989.72/x
3. Step 3: Cross multiply
   1,113,455,188.94x = 1,670,872,484.15 × 647,335,989.72
4. Step 4: Simplify right side
   1,113,455,188.94x = 1,081,615,893,223,155,328
5. Step 5: Solve for x
   x = 1,081,615,893,223,155,328/1,113,455,188.94
6. Step 6: Final answer
   x = 971,404,959.95