Finding the Fourth Proportional to 89,827,067.30, 134,488,658.55 and 87,307,643.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,827,067.30 : 134,488,658.55 = 87,307,643.30 : x
2. Step 2: Convert to fraction form
   89,827,067.30/134,488,658.55 = 87,307,643.30/x
3. Step 3: Cross multiply
   89,827,067.30x = 134,488,658.55 × 87,307,643.30
4. Step 4: Simplify right side
   89,827,067.30x = 11,741,887,828,578,896
5. Step 5: Solve for x
   x = 11,741,887,828,578,896/89,827,067.30
6. Step 6: Final answer
   x = 130,716,588.90