Finding the Fourth Proportional to 172,442,100.52, 237,934,574.67 and 99,089,070.76

Step by Step Solution

1. Step 1: Write the proportion equation
   172,442,100.52 : 237,934,574.67 = 99,089,070.76 : x
2. Step 2: Convert to fraction form
   172,442,100.52/237,934,574.67 = 99,089,070.76/x
3. Step 3: Cross multiply
   172,442,100.52x = 237,934,574.67 × 99,089,070.76
4. Step 4: Simplify right side
   172,442,100.52x = 23,576,715,905,726,132
5. Step 5: Solve for x
   x = 23,576,715,905,726,132/172,442,100.52
6. Step 6: Final answer
   x = 136,722,504.74