Finding the Fourth Proportional to 121,186.47, 181,701.59 and 58,005.05

Step by Step Solution

1. Step 1: Write the proportion equation
   121,186.47 : 181,701.59 = 58,005.05 : x
2. Step 2: Convert to fraction form
   121,186.47/181,701.59 = 58,005.05/x
3. Step 3: Cross multiply
   121,186.47x = 181,701.59 × 58,005.05
4. Step 4: Simplify right side
   121,186.47x = 10,539,610,412.30
5. Step 5: Solve for x
   x = 10,539,610,412.30/121,186.47
6. Step 6: Final answer
   x = 86,970.19