Finding the Fourth Proportional to 58,912,830.72, 81,257,826.72 and 39,323,842.56

Step by Step Solution

1. Step 1: Write the proportion equation
   58,912,830.72 : 81,257,826.72 = 39,323,842.56 : x
2. Step 2: Convert to fraction form
   58,912,830.72/81,257,826.72 = 39,323,842.56/x
3. Step 3: Cross multiply
   58,912,830.72x = 81,257,826.72 × 39,323,842.56
4. Step 4: Simplify right side
   58,912,830.72x = 3,195,369,984,705,041.50
5. Step 5: Solve for x
   x = 3,195,369,984,705,041.50/58,912,830.72
6. Step 6: Final answer
   x = 54,238,948.39