Finding the Fourth Proportional to 159,488,356, 220,094,019.84 and 86,149,498.72

Step by Step Solution

1. Step 1: Write the proportion equation
   159,488,356 : 220,094,019.84 = 86,149,498.72 : x
2. Step 2: Convert to fraction form
   159,488,356/220,094,019.84 = 86,149,498.72/x
3. Step 3: Cross multiply
   159,488,356x = 220,094,019.84 × 86,149,498.72
4. Step 4: Simplify right side
   159,488,356x = 18,960,989,480,485,736
5. Step 5: Solve for x
   x = 18,960,989,480,485,736/159,488,356
6. Step 6: Final answer
   x = 118,886,356.07