Finding the Fourth Proportional to 78,586,464.06, 107,663,839.91 and 75,641,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   78,586,464.06 : 107,663,839.91 = 75,641,061.31 : x
2. Step 2: Convert to fraction form
   78,586,464.06/107,663,839.91 = 75,641,061.31/x
3. Step 3: Cross multiply
   78,586,464.06x = 107,663,839.91 × 75,641,061.31
4. Step 4: Simplify right side
   78,586,464.06x = 8,143,807,115,744,233
5. Step 5: Solve for x
   x = 8,143,807,115,744,233/78,586,464.06
6. Step 6: Final answer
   x = 103,628,623.75