Finding the Fourth Proportional to 93,066.61, 139,247.64 and 55,136.25

Step by Step Solution

1. Step 1: Write the proportion equation
   93,066.61 : 139,247.64 = 55,136.25 : x
2. Step 2: Convert to fraction form
   93,066.61/139,247.64 = 55,136.25/x
3. Step 3: Cross multiply
   93,066.61x = 139,247.64 × 55,136.25
4. Step 4: Simplify right side
   93,066.61x = 7,677,592,168.77
5. Step 5: Solve for x
   x = 7,677,592,168.77/93,066.61
6. Step 6: Final answer
   x = 82,495.67