Finding the Fourth Proportional to 151,715,510.52, 209,316,152.61 and 98,768,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   151,715,510.52 : 209,316,152.61 = 98,768,109.30 : x
2. Step 2: Convert to fraction form
   151,715,510.52/209,316,152.61 = 98,768,109.30/x
3. Step 3: Cross multiply
   151,715,510.52x = 209,316,152.61 × 98,768,109.30
4. Step 4: Simplify right side
   151,715,510.52x = 20,673,760,639,239,960
5. Step 5: Solve for x
   x = 20,673,760,639,239,960/151,715,510.52
6. Step 6: Final answer
   x = 136,266,625.40