Finding the Fourth Proportional to 61,788, 91,887.13 and 59,819.68

Step by Step Solution

1. Step 1: Write the proportion equation
   61,788 : 91,887.13 = 59,819.68 : x
2. Step 2: Convert to fraction form
   61,788/91,887.13 = 59,819.68/x
3. Step 3: Cross multiply
   61,788x = 91,887.13 × 59,819.68
4. Step 4: Simplify right side
   61,788x = 5,496,658,712.72
5. Step 5: Solve for x
   x = 5,496,658,712.72/61,788
6. Step 6: Final answer
   x = 88,959.97