Finding the Fourth Proportional to 152,722,423.24, 210,862,385.91 and 142,965,166.48

Step by Step Solution

1. Step 1: Write the proportion equation
   152,722,423.24 : 210,862,385.91 = 142,965,166.48 : x
2. Step 2: Convert to fraction form
   152,722,423.24/210,862,385.91 = 142,965,166.48/x
3. Step 3: Cross multiply
   152,722,423.24x = 210,862,385.91 × 142,965,166.48
4. Step 4: Simplify right side
   152,722,423.24x = 30,145,976,105,466,000
5. Step 5: Solve for x
   x = 30,145,976,105,466,000/152,722,423.24
6. Step 6: Final answer
   x = 197,390,635.03