Finding the Fourth Proportional to 124,762,828.10, 187,156,748.55 and 42,870,920.90

Step by Step Solution

1. Step 1: Write the proportion equation
   124,762,828.10 : 187,156,748.55 = 42,870,920.90 : x
2. Step 2: Convert to fraction form
   124,762,828.10/187,156,748.55 = 42,870,920.90/x
3. Step 3: Cross multiply
   124,762,828.10x = 187,156,748.55 × 42,870,920.90
4. Step 4: Simplify right side
   124,762,828.10x = 8,023,582,162,988,240
5. Step 5: Solve for x
   x = 8,023,582,162,988,240/124,762,828.10
6. Step 6: Final answer
   x = 64,310,678.79