Finding the Fourth Proportional to 58,939,870.32, 80,747,910.44 and 56,730,818.24

Step by Step Solution

1. Step 1: Write the proportion equation
   58,939,870.32 : 80,747,910.44 = 56,730,818.24 : x
2. Step 2: Convert to fraction form
   58,939,870.32/80,747,910.44 = 56,730,818.24/x
3. Step 3: Cross multiply
   58,939,870.32x = 80,747,910.44 × 56,730,818.24
4. Step 4: Simplify right side
   58,939,870.32x = 4,580,895,030,431,438
5. Step 5: Solve for x
   x = 4,580,895,030,431,438/58,939,870.32
6. Step 6: Final answer
   x = 77,721,498.29