Finding the Fourth Proportional to 93,097.67, 128,071.64 and 81,560.62

Step by Step Solution

1. Step 1: Write the proportion equation
   93,097.67 : 128,071.64 = 81,560.62 : x
2. Step 2: Convert to fraction form
   93,097.67/128,071.64 = 81,560.62/x
3. Step 3: Cross multiply
   93,097.67x = 128,071.64 × 81,560.62
4. Step 4: Simplify right side
   93,097.67x = 10,445,602,362.82
5. Step 5: Solve for x
   x = 10,445,602,362.82/93,097.67
6. Step 6: Final answer
   x = 112,200.47