Finding the Fourth Proportional to 70,073,190.72, 96,686,978.40 and 39,128,598.72

Step by Step Solution

1. Step 1: Write the proportion equation
   70,073,190.72 : 96,686,978.40 = 39,128,598.72 : x
2. Step 2: Convert to fraction form
   70,073,190.72/96,686,978.40 = 39,128,598.72/x
3. Step 3: Cross multiply
   70,073,190.72x = 96,686,978.40 × 39,128,598.72
4. Step 4: Simplify right side
   70,073,190.72x = 3,783,225,979,262,908
5. Step 5: Solve for x
   x = 3,783,225,979,262,908/70,073,190.72
6. Step 6: Final answer
   x = 53,989,634.84