Finding the Fourth Proportional to 61,733.16, 85,186.71 and 34,878

Step by Step Solution

1. Step 1: Write the proportion equation
   61,733.16 : 85,186.71 = 34,878 : x
2. Step 2: Convert to fraction form
   61,733.16/85,186.71 = 34,878/x
3. Step 3: Cross multiply
   61,733.16x = 85,186.71 × 34,878
4. Step 4: Simplify right side
   61,733.16x = 2,971,142,071.38
5. Step 5: Solve for x
   x = 2,971,142,071.38/61,733.16
6. Step 6: Final answer
   x = 48,128.79