Finding the Fourth Proportional to 111,208,757.58, 153,460,343.61 and 61,648,654.86

Step by Step Solution

1. Step 1: Write the proportion equation
   111,208,757.58 : 153,460,343.61 = 61,648,654.86 : x
2. Step 2: Convert to fraction form
   111,208,757.58/153,460,343.61 = 61,648,654.86/x
3. Step 3: Cross multiply
   111,208,757.58x = 153,460,343.61 × 61,648,654.86
4. Step 4: Simplify right side
   111,208,757.58x = 9,460,623,757,909,898
5. Step 5: Solve for x
   x = 9,460,623,757,909,898/111,208,757.58
6. Step 6: Final answer
   x = 85,070,852.01