Finding the Fourth Proportional to 105,695,544.89, 145,859,553.33 and 58,659,719.55

Step by Step Solution

1. Step 1: Write the proportion equation
   105,695,544.89 : 145,859,553.33 = 58,659,719.55 : x
2. Step 2: Convert to fraction form
   105,695,544.89/145,859,553.33 = 58,659,719.55/x
3. Step 3: Cross multiply
   105,695,544.89x = 145,859,553.33 × 58,659,719.55
4. Step 4: Simplify right side
   105,695,544.89x = 8,556,080,492,026,069
5. Step 5: Solve for x
   x = 8,556,080,492,026,069/105,695,544.89
6. Step 6: Final answer
   x = 80,950,247.25