Finding the Fourth Proportional to 142,277.31, 196,434.24 and 91,312.01

Step by Step Solution

1. Step 1: Write the proportion equation
   142,277.31 : 196,434.24 = 91,312.01 : x
2. Step 2: Convert to fraction form
   142,277.31/196,434.24 = 91,312.01/x
3. Step 3: Cross multiply
   142,277.31x = 196,434.24 × 91,312.01
4. Step 4: Simplify right side
   142,277.31x = 17,936,804,956.07
5. Step 5: Solve for x
   x = 17,936,804,956.07/142,277.31
6. Step 6: Final answer
   x = 126,069.33