Finding the Fourth Proportional to 42,715,623.12, 58,931,289.90 and 31,578,857.52

Step by Step Solution

1. Step 1: Write the proportion equation
   42,715,623.12 : 58,931,289.90 = 31,578,857.52 : x
2. Step 2: Convert to fraction form
   42,715,623.12/58,931,289.90 = 31,578,857.52/x
3. Step 3: Cross multiply
   42,715,623.12x = 58,931,289.90 × 31,578,857.52
4. Step 4: Simplify right side
   42,715,623.12x = 1,860,982,807,221,915
5. Step 5: Solve for x
   x = 1,860,982,807,221,915/42,715,623.12
6. Step 6: Final answer
   x = 43,566,795.27