Finding the Fourth Proportional to 81,779,789.30, 122,565,485.55 and 43,459,661.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,779,789.30 : 122,565,485.55 = 43,459,661.30 : x
2. Step 2: Convert to fraction form
   81,779,789.30/122,565,485.55 = 43,459,661.30/x
3. Step 3: Cross multiply
   81,779,789.30x = 122,565,485.55 × 43,459,661.30
4. Step 4: Simplify right side
   81,779,789.30x = 5,326,654,489,073,044
5. Step 5: Solve for x
   x = 5,326,654,489,073,044/81,779,789.30
6. Step 6: Final answer
   x = 65,134,118.52