Finding the Fourth Proportional to 359,772,078.88, 539,658,050.28 and 196,147,432.72

Step by Step Solution

1. Step 1: Write the proportion equation
   359,772,078.88 : 539,658,050.28 = 196,147,432.72 : x
2. Step 2: Convert to fraction form
   359,772,078.88/539,658,050.28 = 196,147,432.72/x
3. Step 3: Cross multiply
   359,772,078.88x = 539,658,050.28 × 196,147,432.72
4. Step 4: Simplify right side
   359,772,078.88x = 105,852,541,109,102,672
5. Step 5: Solve for x
   x = 105,852,541,109,102,672/359,772,078.88
6. Step 6: Final answer
   x = 294,221,111.98