Finding the Fourth Proportional to 118,701.89, 178,079.50 and 39,814.10

Step by Step Solution

1. Step 1: Write the proportion equation
   118,701.89 : 178,079.50 = 39,814.10 : x
2. Step 2: Convert to fraction form
   118,701.89/178,079.50 = 39,814.10/x
3. Step 3: Cross multiply
   118,701.89x = 178,079.50 × 39,814.10
4. Step 4: Simplify right side
   118,701.89x = 7,090,075,020.95
5. Step 5: Solve for x
   x = 7,090,075,020.95/118,701.89
6. Step 6: Final answer
   x = 59,730.09