Finding the Fourth Proportional to 346,857, 478,662.66 and 187,881

Step by Step Solution

1. Step 1: Write the proportion equation
   346,857 : 478,662.66 = 187,881 : x
2. Step 2: Convert to fraction form
   346,857/478,662.66 = 187,881/x
3. Step 3: Cross multiply
   346,857x = 478,662.66 × 187,881
4. Step 4: Simplify right side
   346,857x = 89,931,619,223.46
5. Step 5: Solve for x
   x = 89,931,619,223.46/346,857
6. Step 6: Final answer
   x = 259,275.78