Finding the Fourth Proportional to 98,654,087.27, 136,142,931.72 and 54,604,145.63

Step by Step Solution

1. Step 1: Write the proportion equation
   98,654,087.27 : 136,142,931.72 = 54,604,145.63 : x
2. Step 2: Convert to fraction form
   98,654,087.27/136,142,931.72 = 54,604,145.63/x
3. Step 3: Cross multiply
   98,654,087.27x = 136,142,931.72 × 54,604,145.63
4. Step 4: Simplify right side
   98,654,087.27x = 7,433,968,469,453,312
5. Step 5: Solve for x
   x = 7,433,968,469,453,312/98,654,087.27
6. Step 6: Final answer
   x = 75,353,882.19