Finding the Fourth Proportional to 78,886.34, 108,898.32 and 61,384.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,886.34 : 108,898.32 = 61,384.06 : x
2. Step 2: Convert to fraction form
   78,886.34/108,898.32 = 61,384.06/x
3. Step 3: Cross multiply
   78,886.34x = 108,898.32 × 61,384.06
4. Step 4: Simplify right side
   78,886.34x = 6,684,621,008.78
5. Step 5: Solve for x
   x = 6,684,621,008.78/78,886.34
6. Step 6: Final answer
   x = 84,737.37