Finding the Fourth Proportional to 111,598,709.06, 153,779,096.37 and 86,327,290.55

Step by Step Solution

1. Step 1: Write the proportion equation
   111,598,709.06 : 153,779,096.37 = 86,327,290.55 : x
2. Step 2: Convert to fraction form
   111,598,709.06/153,779,096.37 = 86,327,290.55/x
3. Step 3: Cross multiply
   111,598,709.06x = 153,779,096.37 × 86,327,290.55
4. Step 4: Simplify right side
   111,598,709.06x = 13,275,332,732,080,546
5. Step 5: Solve for x
   x = 13,275,332,732,080,546/111,598,709.06
6. Step 6: Final answer
   x = 118,955,970.41